What are some five letter words that begin with the letter O?

Answer 1

Opera

opens

order

older

oaken, oakum, oared, oases, oasis, oasts, oaten, oater, oaths, oaves, obeah, obeli, obese, obeys, obias, obits, oboes, obole, oboli, obols, occur, ocean, ocher, ochre, ochry, ocker, ocrea, octad, octal, octan, octet, octyl, odahs, odder, oddly, odeon, odeum, odist, odium, odors, odour, odyle, odyls, offal, offed, offer, often, ofter, ogams, ogees, ogham, ogive, ogled, ogler, ogles, ogres, ohias, ohing, ohmic, oidia, oiled, oiler, oinks, okapi, okays, okehs, okras, olden, older, oldie, oleic, olein, oleos, oleum, olios, olive, ollas, ology, omasa, omber, ombre, omega, omens, omers, omits, oncet, onery, onion, onium, onlay, onset, ontic, oohed, oomph, oorie, ootid, oozed, oozes, opahs, opals, opens, opera, opine, oping, opium, opsin, opted, optic, orach, orals, orang, orate, orbed, orbit, orcas, orcin, order, ordos, oread, organ, orgic, oribi, oriel, orles, orlon, orlop, ormer, ornis, orpin, orris, ortho, orzos, osier, osmic, osmol, ossia, ostia, other, ottar, otter, ottos, ought, ounce, ouphe, ouphs, ourie, ousel, ousts, outby, outdo, outed, outer, outgo, outre, ouzel, ouzos, ovals, ovary, ovate, ovens, overs, overt, ovine, ovoid, ovoli, ovolo, ovule, owing, owlet, owned, owner, owsen, oxbow, oxeye, oxide, oxids, oxime, oxims, oxlip, oxter, oyers, ozone